> So, be sure that you don't have u...@domain forms in $alias_maps.
Thanks. Every line in the alias files defined in $alias_maps is of the following form: USER: u...@subx.domain.com We are not using the form "u...@domain" for alias entries (instead just USER). I would like to inform again that the setup is working for all the users most of the times except few cases, which happens at very random (around 5-10 emails so out of roughly 70000*30 emails in a month get bounced). I am guessing whether "local" might be unable to perform the lookups in alias tables under heavy load - this is just a guess, but I might be wrong. Need advise from experts. -- View this message in context: http://old.nabble.com/possible-problem-with-postfix-local---tp26939697p26944699.html Sent from the Postfix mailing list archive at Nabble.com.